Hollyoaks star Jorgie Porter and footballer Kieron Dyer were the first names confirmed.

Bannatyne (66), is one of the oldest campers going into the jungle but says age is not a concern for him. The businessman said he climbed Mount Kilimanjaro aged 60 and added: "I was one of the oldest people in our group who did. A lot of the younger people who started pulled out.."

Also 66, Lady Campbell, who wrote a book about Diana, Princess of Wales' affair with James Hewitt, revealed her eldest son did not want her to do the show because "he thought I was too civilised to do something like this".

She said: "It will help with the roof at the castle and I want to lose weight. I'd actually like to lose a stone if possible."

Hadley, famous for hits such as Gold and True, says the show's appeal was "stepping into the unknown". The singer said: "I will be very happy to lose weight. It's a constant battle and so losing a bit of weight would be perfect in fact."

Fielding (47), best known for fronting Most Haunted, said in a bid to cure her phobia of creepy crawlies she was hypnotised after finding an online site.

"I found this site on YouTube where you could hypnotise yourself to be braver. And when I woke up, I did feel a little bit more confident about going in," she said.

Boxer Eubank (49), reckons this will be his first "holiday" since he was 16. His wife thought it would be a good idea, he said.

Shelley, a former X Factor contestant and a member of Union J, will be the youngest in the jungle at just 22.

The singer said that he hoped X Factor boss Simon Cowell would be watching.